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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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40 | ); |
41 |
|
42 | /** |
43 | * Filters the messages displayed when a tag is updated. |
44 | * |
45 | * @since 3.7.0 |
46 | * |
47 | * @param array[] $messages Array of arrays of messages to be displayed, keyed by taxonomy name. |
48 | */ |
49 | $messages = apply_filters( 'term_updated_messages', $messages ); |
50 |
|
51 | $message = false; |
52 | if ( isset( $_REQUEST['message'] ) && (int) $_REQUEST['message'] ) { |
53 | $msg = (int) $_REQUEST['message']; |
54 | if ( isset( $messages[ $taxonomy ][ $msg ] ) ) { |
55 | $message = $messages[ $taxonomy ][ $msg ]; |
56 | } elseif ( ! isset( $messages[ $taxonomy ] ) && isset( $messages['_item'][ $msg ] ) ) { |
57 | $message = $messages['_item'][ $msg ]; |
58 | } |